Bosch Rexroth | 4WRLE25X370M-3XG24ETK0A1M-812
4WRLE25X370M-3X/G24ETK0/A1M-812
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The 4WRLE25X370M-3X/G24ETK0/A1M-812 valve belongs to the 4WRL Solenoid Valves series from Bosch Rexroth and meters oil for closed-loop hydraulic automation. It is supplied in size NG25 so it fits manifolds designed for 25 mm port centers. The unit can pass up to 1250 l/min, providing the flow capacity required for large cylinders or motors. A supply voltage of 24 VDC energizes the solenoids and aligns with standard machine power rails. Electrical consumption peaks at 40 VA, limiting cabinet transformer load. The control electronics accept a ±10 V command signal, allowing direct interface with common motion controllers. Continuous operation is possible because the relative duty cycle is 100 percent. An IP65 housing keeps dust and water jets away from the coils during plant wash-down. The assembly weighs 19 kg, a factor to consider when mounting on vertical subplates.
For pressure regulation, the external ports P, A, and B tolerate up to 350 bar, while internal passages are rated at 280 bar to protect cast sections from overstress. Pilot port X also permits 280 bar so upstream boost circuits can be used without additional protection valves. Return ports T and Y are limited to 250 bar, guiding designers to size drain lines correctly. The spool shifts once a minimum pilot pressure of 10 bar is present, ensuring stable actuation at low loads. Connection to the manifold follows the ISO 4401-08-08-0-05 pattern, streamlining interchange with other NG25 components. Seals are made of NBR to match standard mineral hydraulic oils. Required oil cleanliness is ISO 4406 18/16/13, which keeps the precision metering edges free of silt. These limits coordinate to provide reliable, responsive flow control in automated presses, molding machines, and similar equipment.
Technical Specifications
Command Value Input (a1)
±10 V
Hydraulic Fluid Cleanliness
ISO 4406 18/16/13
Max Operating Pressure P/a/b (external)
350 bar
Max Operating Pressure P/a/b (internal)
280 bar
Max Power Consumption
40 VA
Max Pressure Port X
280 bar
Max Pressure Ports T, Y
250 bar
Maximum Flow
1250 l/min
Minimum Pilot Pressure
10 bar
Porting Pattern
ISO 4401-08-08-0-05
Protection Class
IP65
Relative Duty Cycle
100%
Seal Material
NBR
Size
NG25
Supply Voltage
24 VDC
Weight
19 kg
1620 Old Apex Road
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